hi, is it possible for the on-line acquisition of bmp image in fpga?
okay, wonderful what steps should I respect to do that (just keywords and I'll make my researches) ........... thanks
You have to configure the pins of the FPGA to accept input. Then you can acquiere every format you want with nearly every interface you might have. By the way: you should better know, on what interface and pins the image arrives to your FPGA.
PittyJ wrote: > By the way: you should better know, on what interface and pins the image > arrives to your FPGA. what interface can I use on spartan 3a 1800a?
Possible configurations you can find in the datasheets from Xilinx. For example: http://www.xilinx.com/support/documentation/data_sheets/ds529.pdf Spartan-3A FPGAs support the following single-ended standards: • 3.3V low-voltage TTL (LVTTL) • Low-voltage CMOS (LVCMOS) at 3.3V, 2.5V, 1.8V, 1.5V, or 1.2V • 3.3V PCI at 33 MHz or 66 MHz • HSTL I, II, and III at 1.5V and 1.8V, commonly used in memory applications • SSTL I and II at 1.8V, 2.5V, and 3.3V, commonly used for memory applications Spartan-3A FPGAs support the following differential standards: • LVDS, mini-LVDS, RSDS, and PPDS I/O at 2.5V or 3.3V • Bus LVDS I/O at 2.5V • TMDS I/O at 3.3V • Differential HSTL and SSTL I/O • LVPECL inputs at 2.5V or 3.3 Also you find the RAM. The largenst one has 576 KBit, meaning 72 KByte. This should be sufficient to store a BMP image of 120 x 200 (RGB).
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